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slavikrds [6]
3 years ago
7

Which of these is a mixture a. Water b. Vinegar c. Carbon dioxide d popcorn salt

Biology
2 answers:
BigorU [14]3 years ago
6 0
Popcorn salt is the mixture!
Sedbober [7]3 years ago
6 0

The right option is; d popcorn salt

A mixture is a substance that is formed when two or more different substances are combined in a way that no chemical reaction takes place between the substances. In a mixture, each of the constituents maintains its chemical identity, and the mixture can be separated back to its normal constituent. Examples of mixtures are salt and pepper, water and salt etc.

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Answer:

All the given statements are correct except b.

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It makes it difficult for the existing drugs to eliminate the infection as they become less effective against the microbe.

There are five major mechanisms by which a microbe attains resistance against antimicrobial chemical or drug:

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  2. Alteration or modification of target site: An altered target site prevents the antimicrobial agent from binding to its target. For example, alteration of penicillin binding protein (PBP) in Methicillin-resistant <em>Staphylococcus aureus </em>(MRSA).
  3. Alteration of metabolic pathway: The microbe uses an alternative pathway to circumvent the blocked pathway. For example, sulfonamides-resistant bacteria started using preformed folic acid in place of  para-aminobenzoic acid (PABA).
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Going down each trophic level on the pyramid results in a 90% decrease in that energy transfer. True False.
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Answer:

0.5

Explanation:

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